{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Astronomical fragments left by Mr. Jas. Ferguson, assistant astronomer at the U.S. Naval Observatory, at his death in 1867","author_name":"James Ferguson","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008CFKXM.html\">Astronomical fragments left by Mr. Jas. Ferguson, assistant astronomer at the U.S. Naval Observatory, at his death in 1867</a>","width":400,"height":300}